1. H. Harnish, G. Heymer andE. Schallus,Chem. Ing. Tech. 35 (1963) 7.
2. E. Neuenschwander,J. Less-Common Metals 11 (1966) 365.
3. P. H. Wilks andD. R. Lacroix, Proceedings of the Electrochemical Society Fine Particles Symposium, October 1973, Boston (John Wiley and Sons, New York, 1974) pp. 180–6.
4. J. Canteloup andA. Mocellin, “Special Ceramics”, Vol. 6, edited by P. Popper (British Ceramic Research Association, Stoke-on-Trent, 1975).
5. T. Yoshida, A. Kawasaki, K. Nakayawa andK. Akashi,J. Mater. Sci. 14 (1979) 1624.